Which layer of the heart contains a lubricating fluid that reduces friction as the heart beats?

Which is a contraceptive method that is classified as hormonal birth control?

Write a personal plan that can be used to reduce or prevent injury. identify the hazards you would like to prevent from occurring. include strategies in your plan that can be used to address peer pressure and other influences (both internal and external). use valid research sources to create your personal plan.

What can friends provide to affect mental health positively? a)peer pressureb)challengesc)conflictd)companionship